Sinclair ZX80 / ZX81 / Z88 Forums

To create a basic text file: http://zx81.ordi5.free.fr/forums/Vb81_Text.gif Any "P" files can be "patched" ( blank D_file in a 16k Basic file)... Just prepare the auto-start as : 9990 SAVE "MYPROG" 9991 PAUSE 4E4 9999 GOTO 1 http://zx81.ordi5.free.fr/forums/Vb81_Text2.gif To retrieve a Basic text fi...

Hi, There's two ways to enter an hexadecimal listing: In Basic: 1 REM XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 2 LET A$="2A294001050009545D0100023E0\ 07E23D61CF8A9052807070707074F18F0EB77\ EB1318E5" 3 LET B=16514 4 FOR A=1 TO LEN A$-1 STEP 2 5 POKE B,16*CODE A$(A)+CODE A$(A+1)-476 6 LET B=B+1 7 NEXT A And in ...

Hi David G,

Web site updated with your great job !
http://abandonlistings.free.fr/ordi5/ZX81_1.htm

(enclosed: the PDF, P file and links to your dedicated tread.)

If something's wrong, let me know.
Thanks.

Hi,

I ever seen this kind of rerouted display process.

To slow down the display, as a typewriter display type, to speedup the ZxPrinter and to speedup the screen display… the famous «NIPPERROUTINE».

The display interrupt (IY) is relocated in a homemade routine originally based in the ROM.

Hi, Just a printing routine bug… the COPY is based on a 16k 20x32 screen setup… On a 1k or 2k configuration, it's the same problem. The SCROLL routine don't rebuild the 16k memory D_File and don't fill the screen while it's process. In case of COPY in 1k, it print the 118 character as a displayable ...

Hi David,


Is it correct to you, to enclose it in the zipped file…

Hi, We started a new type-in campaign from the french magazine : "Ordi-5" (In french, Ordi-5 mean Ordi-Cinq "Ordi-Five" [for Ordi Sinc..lair] :ugeek: ) Download programs: http://abandonlistings.free.fr/ordi5/ Pdf issues (#14): http://abandonlistings.free.fr/ordi5/ Thanks to Antipontifex & XavSnap. H...

Hi Martin,
I redraw your logic drawing with dedicated LS ships :

Yes, something's wrong for the latch disable on /RD…
May be you had to use the /IOrq*Address bus=0 to release it…


Kicad schem files:

As you may see in the first :shock: 'P' file was a specific format Xtender… to work on the original tape file. In previous emulators, only the .80 and .81 format are used. The tape input wasn't emulated, and it feed the dedicated memory room as is ! WITHOUT TAPE HEADER NAME… 'P' files are not the p...

using the flat assembler)

Tasm, Z80 ass or the Artic ASM2 ?

In ASM2, you had to type > Shift+ A ( for Label. )
Or/and add tab before mnemonics.